The word lampooners is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 18
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (35 words)
aerosol, almoner, anomers, enamors, lampoon, loaners, maroons, moaners, moorpan, morales, normals, oarsmen, ooplasm, oosperm, operons, orleans, paroles, persona, planers, plasmon, polaron, pomelos, poromas, prosoma, reloans, replans, repoman, respool, ropeman, roseola, sampler, searoom, snooper, soprano, spooler